The symbol is an empty flag, comprised of an empty isosceles triangle with a line extending down from its base. This symbolizes a golf course flag, or an item chosen prior to be emphasized.

This Empty Flag icon is part of an icon pack of 89,000 web icons. Icons are available in PNG, SVG, CSS, PDF, and EPS formats, as a font, and in other vector formats. Unlike other icon packs, our web icons are designed by a single designer, guaranteeing the consistent style and quality.

Idea of Empty Flag Icon by Ivan from Icons8

We've received the idea on October 31, 2011 and created the icons on February 19, 2012

A flag for current location. Kind of triangle one:
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Strange but there are no ones on findicons.

Vict

I agree with Oğuz, flag has to be visible. And visible supposes a colour

Oğuz Çelikdemir

Flags! In my opinion it's not possible without color. Think about German, Belgian flags with two colors!